Creating Via Metal Types
To assign loss to a via in Sonnet, you first define a via metal type by inputting its loss parameters and then assign that via metal type to the via drawn in your circuit. This section provides instructions for creating a via metal type and discusses the loss models used in the Via Metal Editor dialog box.
The Via Metal Editor dialog box allows you to enter a loss definition for the via metal type. There are three different loss models: Volume, Surface, and Array. The different via loss models are discussed below.
You do not need to read the details of each loss model. Instead, you should make yourself familiar with the loss models you are likely to use. Most users only need concern themselves with “Volume.”